I am hypertensive and it is controlled by medication. I am due to have hip replacement surgery and my blood tests showed that my urea is 115. I also have a urine infection for which I am taking antibiotics. Are the urine infection and high urea connected and what do I do to reduce the urea level?

I am hypertensive and it is controlled by medication. I am due to have hip replacement surgery and my blood tests showed that my urea is 115. I also have a urine infection for which I am taking antibiotics. Are the urine infection and high urea connected and what do I do to reduce the urea level?